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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 566347Generated: October 26, 2026

Methyl 2-(1,3-dioxaindan-5-yl)acetate → 6-(3,4-Methylenedioxy-benzyl)-1-(3-nonyl)-3-methyl-1,5-dihydro-pyrazolo[3,4-d]pyrimidin-4-one

https://huagongshe.com/reaction/566347

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl 2-(1,3-dioxaindan-5-yl)acetateHCID 266588—
ReactantSodium BicarbonateHCID 516892—
ReactantSodium ethoxideHCID 2723922—
Reactant5-amino-3-methyl-(3-nonyl)-1H-pyrazole-4-carboxamideHCID 59932347—
SolventDichloromethaneHCID 6344—
Product6-(3,4-Methylenedioxy-benzyl)-1-(3-nonyl)-3-methyl-1,5-dihydro-pyrazolo[3,4-d]pyrimidin-4-oneHCID 13638637752.3%

Reaction Steps

15 mg (0.055 mmol) of 5-amino-3-methyl-1-(3-nonyl)-1H-pyrazole-4-carboxamide and 53 mg (0.274 mmol) of methyl 3,4-methylenedioxyphenylacetate are refluxed for 6 hours in 0.5 ml of a 0.5M ethanolic sodium ethoxide solution. After dichloromethane and saturated aqueous sodium hydrogen carbonate solution have been added, the phases are separated. Purification by chromatography gives 11.8 mg (52%) of a solid, Rf=0.65 (dichloromethane/methanol=15:1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06174884B1
Source datasetuspto-grants-2001_01
ORD IDord-927a85a5acbb40a18c17c0d9c3c7575a
Source noteuspto-grants-2001_01